/*
 * Copyright (c) 2025 Oracle and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.helidon.data.sql.common;

import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Optional;

import io.helidon.data.DataException;

record SqlDriverImpl(Class<? extends Driver> driverClass, Driver driver) implements SqlDriver {
    static SqlDriver create(ConnectionConfig connectionConfig) {
        // Try URL as 1st option

        Optional<String> driverClassName = connectionConfig.jdbcDriverClassName();
        if (driverClassName.isPresent()) {
            String driverClass = driverClassName.get();
            var foundDriver = DriverManager.drivers()
                    .filter(it -> it.getClass().getName().equals(driverClass))
                    .findFirst();

            if (foundDriver.isPresent()) {
                return new SqlDriverImpl(foundDriver.get().getClass(), foundDriver.get());
            }

            throw new DataException(String.format("No %s JDBC driver found on classpath", driverClass));
        }

        String url = connectionConfig.url();
        try {
            Driver driver = DriverManager.getDriver(url);
            return new SqlDriverImpl(driver.getClass(), driver);
        } catch (SQLException e) {
            throw new DataException(String.format("No %s supporting JDBC driver found on classpath", url), e);
        }
    }
}
